- Ais higher at the closer end.
- Bis non-uniform.
- CIs higher at inclined plate.
- DIs uniform.
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Two short magnets placed along the same axis with their like poles facing each other repel each other with a force which varies inversely as
| (a) Square of the distance | (b) Cube of the distance |
| (c) Distance | (d) Fourth power of the distance |
In the uranium radioactive series, the initial nucleus is
and the final nucleus is
. When the uranium nucleus decays to lead, the number of α - particles emitted will be
|
(a) 1 |
(b) 2 |
(c) 4 |
(d) 8 |
If there had been one eye of the man, then
|
(a) Image of the object would have been inverted |
(b) Visible region would have decreased |
|
(c) Image would have not been seen three dimensional |
(d) (b) and (c) both |
A bullet of mass 2 gm is having a charge of 2μC. Through what potential difference must it be accelerated, starting from rest, to acquire a speed of 10 m/s
|
(a) 5 kV |
(b) 50 kV |
(c) 5 V |
(d) 50 V |
In the circuit shown, A and V are ideal ammeter and voltmeter respectively. Reading of the voltmeter will be
|
(a) 2 V |
(b) 1 V |
(c) 0.5 V |
(d) Zero |
In Milikan’s experiment, an oil drop having charge q gets stationary on applying a potential difference V in between two plates separated by a distance ‘d’. The weight of the drop is
|
(a) qVd |
(b) q |
(c) |
(d) q |
The instrument that is based on the principle that when an object is placed between first principal focus and the optic centre of convex lens, an upright, virtual and enlarged image on the same side of the object is formed, is: